Base | Representation |
---|---|
bin | 11001010100010… |
… | …11111101000000 |
3 | 112210122022021100 |
4 | 30222023331000 |
5 | 413332314400 |
6 | 33024054400 |
7 | 5156151000 |
oct | 1452137500 |
9 | 483568240 |
10 | 212385600 |
11 | a9982499 |
12 | 5b164400 |
13 | 3500296b |
14 | 202c8000 |
15 | 139a4100 |
hex | ca8bf40 |
212385600 has 504 divisors, whose sum is σ = 900785600. Its totient is φ = 47416320.
The previous prime is 212385541. The next prime is 212385601. The reversal of 212385600 is 6583212.
212385600 is a `hidden beast` number, since 21 + 2 + 38 + 5 + 600 = 666.
It is a tau number, because it is divible by the number of its divisors (504).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212385601) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4939179 + ... + 4939221.
Almost surely, 2212385600 is an apocalyptic number.
212385600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 212385600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450392800).
212385600 is an abundant number, since it is smaller than the sum of its proper divisors (688400000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212385600 is a wasteful number, since it uses less digits than its factorization.
212385600 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92 (or 60 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 212385600 is about 14573.4553212339. The cubic root of 212385600 is about 596.6344908768.
The spelling of 212385600 in words is "two hundred twelve million, three hundred eighty-five thousand, six hundred".
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